Bert Kehren and I are working on a low cost DMTD system. We are cloning the NBS 106D design with modern components.
You might want to check out PPS dialectric capacitors. (Polyphenylene sulfide) Readily available in many values including large ones. For stability from 55° to +85°C, PPS is virtually flat over this temperature range with a ppm/°C of only 7. We use these in our design for the filter capacitors. I have also replaced the 106D capacitors with PPS and the 1 meg filter resistors with 1PPM per degree C units scavenged from an HP DVM. 10PPM resistors are available from Mouser the last time I looked. Corby Dawson ____________________________________________________________ Banking Click here to find the perfect banking opportunity! http://thirdpartyoffers.juno.com/TGL2141/c?cp=2Y71rDX2T3l4fCP8KwN74gAAJ1ABLZFyqoH-WnHH1GJ345whAAYAAAAAAAAAAAAAAAAAAADNAAAAAAAAAAAAAAAAAAAXeAAAAAA= _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
